Zuzel Vera Pacheco, one of my current graduate students, got ethics approval today for her research study. From her blog post:

Want to win a $100 Best Buy gift card? Do you have basic knowledge about database queries? If so, I need you!
Subjects are needed to take part in a study concerning the visualization of database queries. Participants will be asked to draw diagrams that represent the execution of database queries or to determine what queries are represented by a set of diagrams. This study will help design a tool intended to help expert and novice programmers to design and debug such queries. The time needed for the study will range from 30 minutes to an hour, and can take place in the Bahen Centre at the University of Toronto or elsewhere in the Greater Toronto Area.
A basic understanding of relational databases and database queries is required. The examples will contain queries in SQL and other programming languages like Ruby or Python. The participants should be fluent/conversant in English.
Participants who complete the study will be entered into a random draw for a $100 Best Buy gift card. The odds of winning this prize are 1 in 30.
For more information please contact:
Zuzel Vera Pacheco
zuzelvp@cs.toronto.edu

If you can help, please give her a shout---we could all learn something cool.